Zynga is Amazon's big customer in public cloud. But, when I play CityVille, the URL is served from facebook's server. It looks confusing to me. Can anyone explain the architecture and share of work among Zynga, facebook and amazon? Thanks.
closed as off topic by Sathya♦ Mar 13 at 8:57
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Only the URL you see is one of Facebook. The page contains a frame which is included from Amazon.
According to Facebooks getting started on apps page: